CN1761564A - 生产包装层压材料的方法 - Google Patents

生产包装层压材料的方法 Download PDF

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CN1761564A
CN1761564A CNA2003801102337A CN200380110233A CN1761564A CN 1761564 A CN1761564 A CN 1761564A CN A2003801102337 A CNA2003801102337 A CN A2003801102337A CN 200380110233 A CN200380110233 A CN 200380110233A CN 1761564 A CN1761564 A CN 1761564A
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layer
supporting layer
laminated material
inboard
width
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CN100374287C (zh
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P·弗里斯克
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Tetra Laval Holdings and Finance SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/026—Chemical pre-treatments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
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    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2795/00—Printing on articles made from plastics or substances in a plastic state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
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  • Containers And Plastic Fillers For Packaging (AREA)
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Abstract

一种生产层压材料的方法，包括，提供包含支撑层的原料卷，从原料卷中拉出幅料状支撑层，转移银基薄膜层到包括为形成容器而通过高频感应加热待热封的区域的支撑层内侧的内表面上，在转移步骤之前或之后，在支撑层的内侧层压可热封内层，在长幅料状支撑层的外侧上印刷容器图案，以及同时或随后地，在印刷过的幅料状支撑层的内侧上形成一层或多层相同类型或不同类型的热塑塑料层。该方法形成密封区域以使其具有抗菌环境。

Description

生产包装层压材料的方法
技术领域
本发明涉及一种生产包装层压材料的方法。
背景技术
用于包装容器的、包括支撑层和热塑塑料内层的幅料状层压材料是已知的，其中碳黑导电层在为形成容器而通过高频感应加热待热封的区域层压于支撑层和热塑塑料最内层之间(例如，如JP-B.63-222所公开的)。在层压材料中，其结构为支撑层，热塑塑料最内层以及作为夹在其间的中间层的碳黑导电层。
例如JP No.2694286中公开了一种包装机器，其中配置用于将用来高频感应加热的铝箔带附着到一部分待热封的幅料状层压材料上的附着设备来通过加热器的高频线圈进行铝箔带的高频感应加热。
当叠放用于包装容器的幅料状层压材料时，可热封的最内层熔化形成待密封区域，待填充包装的液体食品或类似物可能会留在密封区域及其附近，而且这些残留物可能会被外面的细菌或类似物污染。密封区域及其附近应该形成使得其具有抗菌环境或用抗菌材料形成。
用于液体食品的包装纸容器分为可常温储存的无菌包装和如牛奶容器的处于冷藏分配下的冷藏包装。作为无菌包装和冷藏包装的相应包装层压材料通常分别生产，并且通过不同的填充和包装机、使用不同的密封方法填充和包装液体食品。
然而，即使对于无菌包装和冷藏包装的不同包装系统，通过不同包装系统的部件的变更或转移来实现整个包装系统的有效运行/工作/操作，更进一步，这有助于能源和材料的节省以及生产费用的降低。
发明内容
本发明的目的是提供一种能解决上述问题的包装层压材料。
生产能解决上述问题的包装层压材料的方法包括，提供包含至少一支撑层的原料卷，从原料卷中拉出幅料状支撑层，转移蒸气沉积于基片上的银基薄膜层到包括通过高频感应加热以形成容器的待密封区域的支撑层内侧的内表面上，在转移步骤之前或之后，在支撑层的内侧层压可热封内层，在长幅料状支撑层的外侧上间接或直接印刷容器图案，以及同时或随后地，在印刷过的幅料状支撑层的外侧和内侧上形成一层或多层相同类型或不同类型的热塑塑料层。
该方法将形成密封区域及其邻近区域以具有抗菌环境或由抗菌材料制成，即使对于无菌包装和冷藏包装的不同包装系统，不同包装系统的部件可以变更或转移。因此使得整个包装系统能有效运行/工作/操作，另外，这有助于能源和材料的节省以及生产费用的降低。
本发明按照权利要求1的生产包装层压材料的方法是一种生产用于包装容器的、至少包括支撑层和可热封内层的幅料状层压材料的方法，该方法包括，提供用于支撑层的原料卷的步骤，从原料卷中拉出幅料状支撑层的步骤，转移蒸气沉积于基片上的银基薄膜层到包括在为形成容器通过高频感应加热而待热封的区域的支撑层内侧的内表面的步骤，在转移步骤之前或之后，在支撑层内侧层压可热封内层的步骤，在长幅料状支撑层的外侧上间接或直接印刷容器图案的步骤，以及同时或随后地，在印刷过的幅料状支撑层外侧和内侧上形成一层或多层相同类型或不同类型的热塑塑料层的步骤。
在本发明按照权利要求2的用于生产包装层压材料的方法中，在通过高频感应加热热封形成容器前立即将蒸气沉积于基片上的银基薄膜层转移到层压可热封内层的内表面上。
在本发明按照权利要求3的用于生产包装层压材料的方法中，将蒸气沉积于基片上的银基薄膜层转移到层压在支撑层内侧的热塑塑料中间层的内表面上。
在本发明按照权利要求4的用于生产包装层压材料的方法中，将蒸气沉积于基片上的银基薄膜层直接转移到支撑层内侧的内表面上。
如上所述的本发明具有下述功能。
按照本发明的用于包装容器的幅料状层压材料是能形成若干容器的细长带状(幅料状)，且能填充并高速连续生产包装容器。
本发明中，支撑层给包装容器和层压材料提供了物理机械强度并维持和支撑形状和结构，等等。热塑塑料内层相对于容器壁也是最内层或最邻近层，并相对于容器的支撑层与液体食品直接或紧密地间接接触以防液体的渗透/润湿。另外，内层在热封时加热熔化并软化形成密封区域。
银基薄膜层是蒸气沉积在基片上上的薄层，该银基薄膜层转移到包括为形成容器而通过高频感应加热待热封的区域的支撑层内侧的内表面上。
因为银基薄膜层具有导电性，当高频电流施加到外部线圈时，在导电层通过高频感应产生感应电流，由电阻产生的热熔化并密封邻近内层的塑料材料(热塑塑料材料/树脂)。即，本发明中，在形成容器时通过高频感应加热使导电层被感应加热，产生的热被传导到最内层，由此热塑塑料最内层被加热、熔化并软化。在加热区域形成热封区域。
本发明生产包装层压材料的方法是一种生产用于包装容器的、至少包括支撑层和可热封内层的幅料状层压材料的方法，该方法包括，提供用于支撑层的原料卷的步骤，从原料卷中拉出幅料状支撑层的步骤，转移蒸气沉积于基片上的银基薄膜层到包括为形成容器通过高频感应加热而待热封的区域的支撑层内侧的内表面的步骤，在转移步骤之前或之后，在支撑层内侧层压可热封内层的步骤，在长幅料状支撑层的外侧上间接或直接印刷容器图案的步骤，以及同时或随后地，在幅料状印刷过的支撑层外侧和内侧上形成一层或多层相同类型或不同类型(例如，阻气性，挡光性)的热塑塑料层的步骤。
在本发明的优选实施方案中，在通过高频感应加热而热封以形成容器之前立即将蒸气沉积于基片上的银基薄膜层转移到层压可热封内层的内表面上。
为了形成容器，转移步骤是在机器中进行，所述机器就是实施方案的包装和填充机。例如，实施方案中的层压材料包括(外侧)热塑塑料最外层，印刷层，如纸的支撑层，热封内层以及银基薄膜层(内侧)。除了为形成容器而通过高频感应加热待热封的区域(密封区域)之外的层结构是(外侧)热塑塑料最外层，印刷层，以及如纸的支撑层，热封内层(内侧)，例如，在银基薄膜不转移的区域。
这一实施方案的优点是在形成容器的大约最后一个步骤实施转移，因此包装和填充能通过对包装材料的相当宽的选择而有效进行。因为银基薄膜层是最内层，可以直接加热可热封的材料，从而能有效加热和密封。另外，在热封中加压使薄膜的银组分(金属银，银离子，氧化银，等等)不连续地覆盖整个密封区域，使得形成密封区域及其附近具有抗菌环境或用抗菌材料形成。
在本发明优选实施方案的生产幅料状层压材料的方法中，将蒸气沉积于基片上的银基薄膜层转移到层压在支撑层内侧上的热塑塑料中间层的内表面上。
按照所述实施方案，转移步骤可以在生产层压材料的步骤中进行，也就是在层压材料制造设备中进行。例如，实施方案中的层压材料包括(外侧)热塑塑料最外层，印刷层，如纸的支撑层，热塑塑料中间层，银基薄膜层和可热封内层(内侧)。除了通过高频感应加热形成容器的待热封区域(密封区域)之外的层结构是(外侧)热塑塑料最外层，印刷层，以及如纸的支撑层，热塑塑料中间层以及可热封内层(内侧)，例如，在银基薄膜不转移的区域。
该实施方案的优点是在层压材料制造设备中快速层压的步骤实施转移，因此转移步骤可以有效，即，高速地实施。
在本发明优选实施方案的生产幅料状层压材料的方法中，蒸气沉积于基片上的银基薄膜层直接转移到支撑层内侧的内表面上。
正如上述实施方案，按照这些实施方案，转移步骤可以在层压材料的制造设备中实施。例如，实施方案中的层压材料包括(外侧)热塑塑料最外层，印刷层，如纸的支撑层，银基薄膜层和可热封内层(内侧)。除了通过高频感应加热形成容器的待热封区域(密封区域)之外的层结构是(外侧)热塑塑料最外层，印刷层，以及如纸的支撑层以及可热封内层(内侧)，例如，在银基薄膜不转移的区域。
所述实施方案的优点是在层压材料制造设备中快速层压的步骤实施转移，因此转移步骤可以有效，即，高速地实施。另外，直接转移能忽略多余的中间层，提供廉价且薄的包装材料。
按照本发明层压材料的热密封提供了本发明的层压材料，即，包括支撑层和热塑塑料内层的层压材料，其中在为形成容器而高频感应加热进行热封的区域上将具有银基薄膜层的幅料状层压材料层压在支撑层内侧上，以使由感应加热产生的热传导到内层。幅料状层压材料通常以卷绕形式拾取并储存或运输。
例如，将卷绕形式幅料状层压材料放置在包装和填充机上，层压材料从卷中放出并输送进填充机。幅料状层压材料在输送过程中在下降时形成管状。在层压材料的纵向进行纵向密封以提供没有液体泄漏的液体密封状态。在通过高频感应加热进行纵向密封的情况下，通过高频感应加热形成热封区域。在层压材料管中填充液体食品。
在填充管横向的每个预定间隔和，优选，在液体表面以下通过高频感应加热形成热封区域，并进行横向密封。然后，例如，用切割刀切开密封区域的中心，形成各个容器和，可选择地，沿着折缝折叠成最终形状。
附图说明
图1是按照本发明一个实施方案的生产幅料状层压材料的方法的横截面视图。
图2是按照本发明一个实施方案的幅料状层压材料部的一部分的俯视图。
图3是本发明另一个实施方案的生产幅料状层压材料的方法的横截面视图。
图4是本发明所用的包装和填充机的示意图，以及
图5是本发明所用的填充机的横向密封设备的示意图。
具体实施方式
结合下述图1至图5清楚地描述本发明的实施方案。
(实施方案1)
图1是按照本发明一个实施方案的生产幅料状层压材料的方法的横截面视图，以及层压材料的一部分的放大横截面视图。图1中，层压材料包括由纸，卡纸板，塑料材料或它们的复合材料制成的支撑层1，如由低密度聚乙烯或线性低密度聚乙烯制成的热塑塑料内层3，在通过高频感应加热进行热封以使由热感应产生的热传到内层3的区域层压在热塑塑料内层3的内表面上的银基薄膜层2，以及层压在外侧的热塑塑料外层4。
银基薄膜层2是蒸气沉积在基片膜21上的银基薄膜通过由银蒸气沉积机20中的火印转录器(hot stamp transcriber)22的转移步骤转移的层2。
在银蒸气沉积机20中，银蒸气由固体银气化，10微米或更薄优选约0.1-1微米的金属银/氧化银的银基薄膜蒸气沉积到在机器中连续通过银蒸气气氛的25微米或更薄的基片膜21的平面上。
图2是按照本发明一个实施方案的幅料状层压材料的一部分的俯视图。图2中，幅料状层压材料是包括纸，塑料或它们的复合材料的支撑层以及如低密度聚乙烯制成的热塑塑料层的层压材料。大多数包装容器是由层压材料获得，其中在转移方向上用于横向密封的两个密封区域5之间的部分对应一个包装容器。银基薄膜层2在通过高频感应加热热封的区域5处层压在支撑层内侧上以使由热感应产生的热传到内层3。
在通过高频感应加热纵向密封的情况下，银基薄膜层也层压在幅料状层压材料的两个末端部分7使得通过高频感应加热形成热封区域。
在通过高频感应加热进行纵向密封的情况下，银基薄膜层层压在如图2所示的区域5及其邻近区域，以及两个末端部分7和7。
图3是按照本发明另一实施方案的幅料状层压材料的转移步骤的横截面视图。如图3所示，在银蒸气沉积机20中，银蒸气由固体银气气化，0.5-2微米的金属银/氧化银的银基薄膜被蒸气沉积到在机器中连续通过银蒸气气氛的约20微米的基片膜21的平面上。蒸气沉积到基片膜21上的银基薄膜通过火印转录器(hot stamp transcriber)22转移到层压材料上，构成银基薄膜层2。
对于幅料，在印刷步骤，容器图案间接或直接印刷到幅料状支撑层的外表面。这里，词语“间接或直接”是指塑料层压层，膜层，粘合层，结合层或类似物也可以层压在用于图形或图案的印刷层和支撑层表面之间。
在印刷过的幅料状支撑层外侧和内侧上，相同或不同类型的一或多层热塑塑料层同时或相继形成。结果，形成一个或多个外层和内层。另外，在中间步骤中，可选择地在层压材料上形成用于插入吸管的孔和便于容器形成的断线(折线)。
参照图4和图5描述本发明的实施方案中热封层压材料的方法。图4是本发明所用的包装和填充机的示意图。
提供了本发明的层压材料，也就是，包括支撑层，银基薄膜层以及热塑塑料内层的幅料状层压材料。卷绕形式幅料状层压材料41安装在包装和填充机上，层压材料从卷41供给并输送到填充机。在传送中幅料状层压材料与由施胶机纵向密封的剥离带接触，然后在通过辊44放下时形成管状。层压材料在纵向方向上进行纵向密封并形成没有液体泄漏的液体密封状态。在通过高频感应加热将用于纵向密封的剥离带结合到层压材料的一个末端的情况下，传导层也层压在它的一个末端7上。另外，在通过高频感应加热进行纵向密封的情况下，通过高频感应加热传导层也层压到用于形成热封区域层压材料膜的两个末端7和7上。
液体食品从填充管45注满层压材料管。
在每个预定间隔，在液体表面下面，通过高频感应加热在如此填充填充的管的横向方向上形成热封区域，然后通过传送密封装置进行纵向密封(示于图5)。
然后，每个所述密封区域的中心由切刀等切断以形成各个容器46，如果有必要沿着折缝折叠以分别形成最终形状。
图5是本发明所用的填充机的横向密封设备的示意图。
如图5所示，通过高频感应加热感应器19和相对的卡爪将两套横向密封装置14和15在横向上垂直移动压住填充的密封材料管10，在预定间隔通过高频感应加热进行加热和冷却并形成加热区域S该密封材料管，这样进行横向密封。
然后，所述每个密封区域S的中心用切刀(未示出)切断形成各个容器。
(实施方案2)
在权利要求2的实施方案中，转录器被安装在施胶器42的上游或下游，将图4示出的包装和填充机中用于纵向密封的剥离带转移。
除了上述实施方案的容器形状之外，本发明的包装容器还包括，例如，砖块形(平行六面体)，以及六边棱柱体，八边棱柱体，四面体，三角顶容器以及类似形状。
如上所述，按照本发明可获得下述有益效果。
密封区域及其附近应该形成以使其具有抗菌环境或由抗菌材料制成。
甚至于对无菌包装和冷藏包装的不同包装系统，由于不同包装系统的一部分能够转用和移动，这能有效运行/工作/操作整个包装系统，更进一步，这有助于能源和材料的节省以及生产费用的降低。
本发明能通过新的密封方法形成密封/结合，通过使用自动粘合机使得在高速印刷期间在印刷机内进行精确的处理是可能的，这可大型苯胺印刷机或影印凹板印刷机的批量生产水平下进行。
按照本发明的方法，快速、可靠的密封方法能用于完全不含金属箔层的廉价包装材料。
工业适用性
将本发明的生产包装层压材料的方法应用于包装液体食品如牛奶，饮料及类似物的包装容器。

Claims (4)

1、一种生产用于包装容器的、至少包括支撑层和可热封内层的幅料状层压材料的方法，包括：
提供用于支撑层的原料卷；
从原料卷中拉出幅料状支撑层；
将蒸气沉积在基片上的银基薄膜层转移到包括为形成容器而通过高频感应加热待热封的区域的支撑层内侧的内表面上；
在银基薄膜层转移步骤之前或之后，在支撑层的内侧层压可热封内层；
在长幅料状支撑层的外侧间接或直接印刷容器图案；以及
在印刷过的幅料状支撑层的外侧和内侧上，同时或随后，形成一层或多层相同类型或不同类型的热塑塑料层。
2、根据权利要求1的生产层压材料的方法，其中，在通过高频感应加热热封形成容器之前，立即将蒸气沉积在基片上的银基薄膜层转移到层压可热封内层的内表面上。
3、根据权利要求1的生产层压材料的方法，其中，将蒸气沉积在基片上的银基薄膜层转移到层压在支撑层内侧的热塑塑料中间层的内表面上。
4、根据权利要求1的生产层压材料的方法，其中，将蒸气沉积在基片上的银基薄膜层直接转移到支撑层内侧的内表面上。
CNB2003801102337A 2003-04-07 2003-12-04 生产包装层压材料的方法 Expired - Fee Related CN100374287C (zh)

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